What is V8?
===========
V8 is Google’s open source high-performance JavaScript and WebAssembly engine, written in C++. It is used in Chrome and in Node.js, among others. It implements [ECMAScript](https://tc39.es/ecma262/) and [WebAssembly](https://webassembly.github.io/spec/core/), and runs on Windows, macOS, and Linux systems that use x64, IA-32, or ARM processors. V8 can be embedded into any C++ application.
Latest posts and feature explainers
-----------------------------------
195. [Turbocharging V8 with mutable heap numbers](/blog/mutable-heap-number) 25 February 2025 [JavaScript](/blog/tags/javascript) [benchmarks](/blog/tags/benchmarks) [internals](/blog/tags/internals)
196. [Introducing the WebAssembly JavaScript Promise Integration API](/blog/jspi) 01 July 2024 [WebAssembly](/blog/tags/webassembly)
197. [WebAssembly JSPI has a new API](/blog/jspi-newapi) 04 June 2024 [WebAssembly](/blog/tags/webassembly)
198. [The V8 Sandbox](/blog/sandbox) 04 April 2024 [security](/blog/tags/security)
199. [Iterator helpers](/features/iterator-helpers) 27 March 2024 [ECMAScript](/blog/tags/ecmascript)
200. [WebAssembly JSPI is going to origin trial](/blog/jspi-ot) 06 March 2024 [WebAssembly](/blog/tags/webassembly)
201. [Static Roots: Objects with Compile-Time Constant Addresses](/blog/static-roots) 05 February 2024 [JavaScript](/blog/tags/javascript)
202. [Import attributes](/features/import-attributes) 31 January 2024 [ECMAScript](/blog/tags/ecmascript)
203. [V8 is Faster and Safer than Ever!](/blog/holiday-season-2023) 14 December 2023 [JavaScript](/blog/tags/javascript) [WebAssembly](/blog/tags/webassembly) [security](/blog/tags/security) [benchmarks](/blog/tags/benchmarks)
204. [Maglev - V8’s Fastest Optimizing JIT](/blog/maglev) 05 December 2023 [JavaScript](/blog/tags/javascript)
More articles can be found in [the blog archive](/blog) and [the features section](/features).